Slab and floor



Aug. 7, 192.3.

A. OlRZALl SLAB AND FLOOR Filed July 30. 1920 7 Fig.1

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A. oRzAu SLAB AND FLOOR Filed July 30. 1920 3 Sheets-Sheet 3 Aclnlufi Orza i INVENTOR;

4Z4 Attorney.

Aug. 7, 1923,

U N l I .ACHILLE ORZALI, OF LUCQUES,

Irena,

ASSIGNOR TO SOCIETA FAIBBRZCA DI SLAB AND FLOOR.

Application filed July 30, 1920.

T 0 all whom it may concern:

Be it known that l, AcHiLLn 011mm, subject of the, King of Italy, residing at Lucques, Borgo Giannotti, in the Kingdom of Italy, have invented new and useful Improvements in Slabs and Floors, of which the following is a specification.

The present invention relates to a flooring composed of terracotta and reinforced concrete slabs, said slabs being flat or arched, hollow or solid and covering or not the I shaped iron joists of the ceiling or flooring or being directly laid by its both ends upon the walls when the distance between said walls does not exceed five meters.

In the annexed drawings, given by way of example:

Fig. 1 is a plan view of a slab in accordance with the invention.

Fig. 2 is a vertical longitudinal section on the line XX (Fig. 1).

Fig. 3 is a perspective view showing several slabs, laid upon the bottom flanges of L shaped joists in case of fiat ceiling build- Fig. l is a similar perspective view showing slabs laid uponthe top flanges, the webs of: the I shaped oists receiving hollow bricks with an outer coating in case of a ceiling with projecting coated joists.

Fig. 5 is a similar view in case of a ceiling with projecting bar joists.

Fig. 6 is a perspective view showing a ceiling composed of slabs according to the invention, laid upon the bottom flanges of the joists and receiving a filling of light material covered with a concrete layer on which a title-flooring is placed.

Fig .7 shows a perspective view of slabs according to the invention directly laid upon two walls moderately distant from each other.

Figs. 8 and 9 are detail views showing more clearly the arrangement of the reinforcing armature.

As shown in the drawing, the flat or curved slabs have a rectangular horizontal section (Figure 1) and each of them is composed of a certain number of hollow or solid bricks 1, the size and number of which varies in accordance with the dimensions of the slab.

Along said slab, is placed a longitudinal reinforcement (see Figs. 8 and 9) comprising a round iron bar 2 near the lower part Serial No. 409,085.

3 of the slab fixed by its two ends on an edge iron member l, and another round iron bar 5 secured near the upper part 6 and provided with transverse binding iron men bers Z secured between the bricks 1, the size of said iron pieces varying according to the dimensions of the slab. A reinforced concrete frame 8 surrounding-the bricks extending therebetween and holding said bricks together is then formed with a mixture of sand and cement, containing the round iron bars 2 and 5 and the iron members i and 7.

The bearing ends 9 of the slabs are conveniently shaped when said slabs are laic upon the flanges 10 of the joists and rec tangularly shaped when they are directlv laid upon walls.

An important use of such slabs consists in building non-arched floorings and ceilmgs. For this purpose, after laying said slabs upon the top flanges 10 of the joists, by covering or not the web oi said joists with hollow terracotta 12, a flat ceiling with coated or bare projecting joists may be obtained (Figuresi and 5 By laying the slabs upon the bottom flanges 10 of the joists and thereafter filling the vacuous spaces with a light material like coal dust 13 and by spreading over said material a flat concrete layer 1 intended to receive the tile pavement, a floor affording a very good insulation against sounds and heat may be obtained. (Figure 6.)

Having now described my invention. what I clann as new and desire to secure by Letters Patent is: l

1. A slab for floors and the lik compris ing a reinforced concrete frame in which a series of recesses are formed, a small block being inserted in each recess, and two adjacent blocks forming an angle close to 180 between each other in order to constitute an arch in the longitudinal direction of the slab.

2. A slab for floors and the like embodying a reinforced concrete frame in which a series of recesses are formed, the metal reinforcement of said frame comprising two longitudinal iron rods the ends whereof are attached to transverse edge iron members, and intermediate transverse iron rods located in the spaces between adjacent recesses,

a small block being inserted in each recess and two ad acent blocks forming an angle till close to 180 between each other in order to constitute an arch in the longitudinal direction of the slab.

3. A. slab for floors and the like comprising a reinforced concrete frame in which a series of recesses are formed, each longitudinal side part of said frame comprising two longitudinal iron rods, one of said rods being laid near the lower face of the slab and extending over the Whole length of the lat ter, and the other rod being laid above the first mentioned rod and being archshaped, transverse stirrups connecting the upper longitudinal rods, and small blocks inserted into the recesses of the frame, and

constituting an arch in the longitudinal direction of the slab.

4. A slab for floors and the like comprising a reinforced concrete frame in which a series of recesses are formed, two reinforcing rods being located in each longitudinal side part of said frame, one of said rods being laid near the lower face of the slab and extending over the Whole length of the latter, and the other rod being laid above the first mentioned rod and being archshaped, said lower rods being attached to end stirrups placed at each end of the frame, and Whose central part is adjacent to the edge of said ends, and said upper rods being connected by transverse intermediate stirrups, small blocks being inserted into the recesses of the frame and constituting an arch in the longitudinal direction of the slab.

In testimony whereof I have signed my name to this specification.

ACHILLE ORZALI. 

